diff --git a/wp-admin/edit-category-form.php b/wp-admin/edit-category-form.php
index 1c1b13abf8..61a212e48b 100644
--- a/wp-admin/edit-category-form.php
+++ b/wp-admin/edit-category-form.php
@@ -23,7 +23,7 @@ if ( ! empty($cat_ID) ) {
 <input type="hidden" name="action" value="<?php echo $action ?>" />
 <input type="hidden" name="cat_ID" value="<?php echo $category->term_id ?>" />
 <?php wp_nonce_field($nonce_action); ?>
-	<table class="niceblue" width="100%">
+	<table class="niceblue">
 		<tr class="form-field form-required">
 			<th scope="row" valign="top"><label for="cat_name"><?php _e('Category Name') ?></label></th>
 			<td><input name="cat_name" id="cat_name" type="text" value="<?php echo attribute_escape($category->name); ?>" size="40" /></td>
diff --git a/wp-admin/edit-link-category-form.php b/wp-admin/edit-link-category-form.php
index 2f4344fc2f..580a14f088 100644
--- a/wp-admin/edit-link-category-form.php
+++ b/wp-admin/edit-link-category-form.php
@@ -23,7 +23,7 @@ if ( ! empty($cat_ID) ) {
 <input type="hidden" name="action" value="<?php echo $action ?>" />
 <input type="hidden" name="cat_ID" value="<?php echo $category->term_id ?>" />
 <?php wp_nonce_field($nonce_action); ?>
-	<table class="niceblue" width="100%">
+	<table class="niceblue">
 		<tr class="form-field form-required">
 			<th scope="row" valign="top"><label for="name"><?php _e('Category name:') ?></label></th>
 			<td><input name="name" id="name" type="text" value="<?php echo $category->name; ?>" size="40" /></td>
diff --git a/wp-admin/edit-tag-form.php b/wp-admin/edit-tag-form.php
index ebdb326565..155d791e83 100644
--- a/wp-admin/edit-tag-form.php
+++ b/wp-admin/edit-tag-form.php
@@ -23,7 +23,7 @@ if ( ! empty($tag_ID) ) {
 <input type="hidden" name="action" value="<?php echo $action ?>" />
 <input type="hidden" name="tag_ID" value="<?php echo $tag->term_id ?>" />
 <?php wp_nonce_field($nonce_action); ?>
-	<table class="niceblue" width="100%">
+	<table class="niceblue">
 		<tr class="form-field form-required">
 			<th scope="row" valign="top"><label for="name"><?php _e('Tag name:') ?></label></th>
 			<td><input name="name" id="name" type="text" value="<?php echo attribute_escape($tag->name); ?>" size="40" /></td>
diff --git a/wp-admin/options-discussion.php b/wp-admin/options-discussion.php
index 480a3713a5..f06391ba60 100644
--- a/wp-admin/options-discussion.php
+++ b/wp-admin/options-discussion.php
@@ -11,7 +11,7 @@ include('admin-header.php');
 <h2><?php _e('Discussion Settings') ?></h2>
 <form method="post" action="options.php">
 <?php wp_nonce_field('update-options') ?>
-<table class="niceblue" width="100%">
+<table class="niceblue">
 <tr valign="top">
 <th scope="row"><?php _e('Default article settings') ?></th>
 <td>
diff --git a/wp-admin/options-general.php b/wp-admin/options-general.php
index 684e3787c8..359972e0f9 100644
--- a/wp-admin/options-general.php
+++ b/wp-admin/options-general.php
@@ -11,7 +11,7 @@ include('./admin-header.php');
 <h2><?php _e('General Settings') ?></h2>
 <form method="post" action="options.php">
 <?php wp_nonce_field('update-options') ?>
-<table class="niceblue" width="100%">
+<table class="niceblue">
 <tr valign="top">
 <th scope="row"><?php _e('Blog Title') ?></th>
 <td><input name="blogname" type="text" id="blogname" value="<?php form_option('blogname'); ?>" size="40" /></td>
diff --git a/wp-admin/options-misc.php b/wp-admin/options-misc.php
index 58ce33d9c8..447a22c798 100644
--- a/wp-admin/options-misc.php
+++ b/wp-admin/options-misc.php
@@ -13,7 +13,7 @@ include('admin-header.php');
 <form method="post" action="options.php">
 <?php wp_nonce_field('update-options') ?>
 <h3><?php _e('Uploading'); ?></h3>
-<table class="niceblue" width="100%">
+<table class="niceblue">
 <tr valign="top">
 <th scope="row"><?php _e('Store uploads in this folder'); ?></th>
 <td><input name="upload_path" type="text" id="upload_path" class="code" value="<?php echo attribute_escape(str_replace(ABSPATH, '', get_option('upload_path'))); ?>" size="40" />
diff --git a/wp-admin/options-privacy.php b/wp-admin/options-privacy.php
index e6cc63816a..053781fd1b 100644
--- a/wp-admin/options-privacy.php
+++ b/wp-admin/options-privacy.php
@@ -11,7 +11,7 @@ include('./admin-header.php');
 <h2><?php _e('Privacy Settings') ?></h2>
 <form method="post" action="options.php">
 <?php wp_nonce_field('update-options') ?>
-<table class="niceblue" width="100%">
+<table class="niceblue">
 <tr valign="top">
 <th scope="row"><?php _e('Blog Visibility') ?> </th>
 <td>
diff --git a/wp-admin/options-reading.php b/wp-admin/options-reading.php
index 0f10c902cf..6829cf1cbc 100644
--- a/wp-admin/options-reading.php
+++ b/wp-admin/options-reading.php
@@ -11,7 +11,7 @@ include('admin-header.php');
 <h2><?php _e('Reading Settings') ?></h2>
 <form name="form1" method="post" action="options.php">
 <?php wp_nonce_field('update-options') ?>
-<table class="niceblue" width="100%">
+<table class="niceblue">
 <?php if ( get_pages() ): ?>
 <tr valign="top">
 <th scope="row"><?php _e('Front page displays')?></th>
diff --git a/wp-admin/options-writing.php b/wp-admin/options-writing.php
index 78c2fed532..4b3fd32044 100644
--- a/wp-admin/options-writing.php
+++ b/wp-admin/options-writing.php
@@ -12,7 +12,7 @@ include('admin-header.php');
 <form method="post" action="options.php">
 <?php wp_nonce_field('update-options') ?>
 
-<table class="niceblue" width="100%">
+<table class="niceblue">
 <tr valign="top">
 <th scope="row"> <?php _e('Size of the post box') ?></th>
 <td><input name="default_post_edit_rows" type="text" id="default_post_edit_rows" value="<?php form_option('default_post_edit_rows'); ?>" size="2" style="width: 1.5em; " />
@@ -60,7 +60,7 @@ endforeach;
 <h3><?php _e('Post via e-mail') ?></h3>
 <p><?php printf(__('To post to WordPress by e-mail you must set up a secret e-mail account with POP3 access. Any mail received at this address will be posted, so it&#8217;s a good idea to keep this address very secret. Here are three random strings you could use: <code>%s</code>, <code>%s</code>, <code>%s</code>.'), wp_generate_password(), wp_generate_password(), wp_generate_password()) ?></p>
 
-<table class="niceblue" width="100%">
+<table class="niceblue">
 <tr valign="top">
 <th scope="row"><?php _e('Mail Server') ?></th>
 <td><input name="mailserver_url" type="text" id="mailserver_url" value="<?php form_option('mailserver_url'); ?>" size="40" />
diff --git a/wp-admin/wp-admin.css b/wp-admin/wp-admin.css
index 575d06fd78..5dd1da627c 100644
--- a/wp-admin/wp-admin.css
+++ b/wp-admin/wp-admin.css
@@ -877,6 +877,7 @@ html, body {
 .niceblue {
 	border-collapse: collapse;
 	margin-top: 1em;
+	width: 100%;
 }
 
 .niceblue td {